Perithecial section IKI; Habitat: Broken forest of Pseudotsuga and Pinus flexilis with limestone cliffs; Location: Cliffs above Warm Springs Creek, SW side of Warm Springs Mountain, 13.5 km W NW of Dubois; Substrate: Rock, limestone cliffs; Elevation: 279 meters; Notes: Verrucaria compacta det Breuss 2003.
Habit; Habitat: Broken forest of Pseudotsuga and Pinus flexilis with limestone cliffs; Location: Cliffs above Warm Springs Creek, SW side of Warm Springs Mountain, 13.5 km W NW of Dubois; Substrate: Rock, limestone cliffs; Elevation: 279 meters; Notes: Verrucaria compacta det Breuss 2003.
Squamules; Habitat: Broken forest of Pseudotsuga and Pinus flexilis with limestone cliffs; Location: Cliffs above Warm Springs Creek, SW side of Warm Springs Mountain, 13.5 km W NW of Dubois; Substrate: Rock, limestone cliffs; Elevation: 279 meters; Notes: Verrucaria compacta det Breuss 2003.
Spores; Habitat: Broken forest of Pseudotsuga and Pinus flexilis with limestone cliffs; Location: Cliffs above Warm Springs Creek, SW side of Warm Springs Mountain, 13.5 km W NW of Dubois; Substrate: Rock, limestone cliffs; Elevation: 279 meters; Notes: Verrucaria compacta det Breuss 2003.